There are many kinds of in fact air suspension and is only
adjustable soft and hard not adjusted in height, height and the
hardness can be adjusted, such as early application on the part of
the luxury car air suspension system, then through the adjustment
between the two air chambers air velocity to change the hoisting of
hardware and software, and do not have the level adjustment
function. This paper is based on the prevailing level of hardness
adjustable air suspension as an example.

Through the chart above visible, air suspension of the main
structure of actually with us familiar with the spiral spring +
damping cylinder form is almost exactly the same, but in the upper
part of the spiral spring with a sealed chamber, by changing the
volume of the gas chamber and direction (up or down), you can
change the spring length, to adjust the body from the distance and
to some extent, change hard and soft characteristics; also shock
absorber parts is the motor change vent size, thereby regulating
damping force of the shock absorber.

Since by the air to change the volume of the chamber, it must
involve a gas pump with high pressure gas storage mechanism. And
the amount of gas filled and the maintenance of the level of the
body, by the corresponding sensors and electronic control unit to
determine. We to Volkswagen Touareg, for example, the electric air
pump placed on the chassis is probably the copilot position on the
underside of the seat, and high pressure gas reservoir is located
in next to the spare tire in the trunk.

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